Product Summary

The SM8S22A is an 8 - bit single chip micro controller with 64KB flash & 1KB RAM embedded. It is a derivative of the 8052 micro controller family. With its hardware features and powerful instruction set, it’s straight forward to make the SM8S22A a versatile and cost effective controller for those applications which demand up to 32 I/O pins for PDIP package or up to 36 I/O pins for PLCC/QFP package, or applications which need up to 64KB memory either for program or for data or mixed. To program the on-chip flash memory, a commercial writer is available to do it in parallel programming method.

Parametrics

SM8S22A absolute maximum ratings: (1)Operating temperature, TA: 0 to 70℃; (2)Storage temperature, TS: -55 to 155℃; (3)Supply voltage, VCC: 4.5 to 5.5 V; (4)Supply voltage, VCC: 3 to 3.6 V For L Version; (5)Oscillator Frequency, Fosc 16: 3.0 to 16 MHz; (6)Oscillator Frequency, Fosc 25: 3.0 to 25 MHz.

Features

SM8S22A features: (1)Working voltage: 3.0V to 3.6V For L Version; 4.5V to 5.5V For C Version; (2)General 8052 family compatible; (3)12 clocks per machine cycle; (4)64 KB internal flash memory; (5)1024 bytes data RAM; (6)Three 16 bit timers/counters; (7)Four 8-bit I/O ports for PDIP package; (8)Four 8-bit I/O ports + one 4-bit I/O ports for PLCC or QFP package; (9)Full duplex serial channel; (10)Bit operation instruction; (11)Page free jumps; (12)8-bit unsigned division; (13)8-bit unsigned multiply; (14)BCD arithmetic operations; (15)Direct addressing.

Diagrams

SM8S22A block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SM8S22A/2D
SM8S22A/2D

Vishay Semiconductors

TVS Diodes - Transient Voltage Suppressors 8W 22V Unidirect

Data Sheet

Negotiable 
SM8S22A-E3/2D
SM8S22A-E3/2D

Vishay Semiconductors

TVS Diodes - Transient Voltage Suppressors 8W 22V Unidirect

Data Sheet

0-1: $1.54
1-10: $1.32
10-50: $0.97
50-100: $0.83
100-750: $0.69
SM8S22AHE3/2D
SM8S22AHE3/2D

Vishay Semiconductors

TVS Diodes - Transient Voltage Suppressors 8.0W 22V 5% Unidir

Data Sheet

0-365: $1.84
365-750: $1.52
750-1500: $1.40
1500-3000: $1.25